Question

find the area of a triangle ABC whose vertices are (2, 3 )(- 1, 0) ( 2, - 4)​

Answer 1

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Answer 2

Answer:

let a(2,3) b(-1,0) c(2,-4)

½{2(0-(4)+(-1)(-4-3)+2(3-0)}

½{2(4)+(-1)(-7)+2(3)}

½{8+7+6}

½*21

21

2

10.5sq units